EP 0791607 A2 19970827 - Substituted metallocene catalyst for the (co)polymerization of olefins
Title (en)
Substituted metallocene catalyst for the (co)polymerization of olefins
Title (de)
Substituierte Metallocen-Katalysator für die Olefinpolymerisation
Title (fr)
Catalyseur à base de métallocène substitué pour la (co)polymérisation d'oléfines
Publication
Application
Priority
IT MI960331 A 19960222
Abstract (en)
Metallocene complexes of a metal M selected from titanium, zirconium and hafnium, comprising at least one anionic group A containing an eta <5>-cyclopentadienyl ring co-ordinated with the metal M, wherein the anionic group is substituted in at least one position of the cyclopentadienyl ring with a radical having the formula: Ph*-(CR<6>R<7>)n wherein: R<6> and R<7> are independently hydrogen, halogen or a C1-C4 alkyl group, preferably hydrogen, "n" is 0 or 1, preferably 1, Ph* is a C6-C14 group comprising an aromatic ring linked to -CR<6>R<7>- or to A and substituted with at least one and up to a maximum of three electron-attractor groups, on the condition that, when A is an eta <5>-indenyl group and "n" is 0, at least one Ph* group is linked to A in position 1 or 3 of indenyl. These complexes can be used in (co)polymerization processes of alpha -olefins, possibly in the presence of a suitable co-catalyst, for the production of polyolefins with a very high molecular weight.
IPC 1-7
IPC 8 full level
C07F 17/00 (2006.01); C08F 4/64 (2006.01); C08F 4/642 (2006.01); C08F 4/659 (2006.01); C08F 4/6592 (2006.01); C08F 10/00 (2006.01)
CPC (source: EP US)
C07F 17/00 (2013.01 - EP US); C08F 10/00 (2013.01 - EP US); Y10S 526/904 (2013.01 - EP US); Y10S 526/943 (2013.01 - EP US)
C-Set (source: EP US)
Citation (applicant)
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- EP 0478913 A1 19920408 - EXXON CHEMICAL PATENTS INC [US]
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- WO 9200333 A2 19920109 - EXXON CHEMICAL PATENTS INC [US]
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Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB LI NL SE
DOCDB simple family (publication)
EP 0791607 A2 19970827; EP 0791607 A3 19970903; EP 0791607 B1 20010502; AT E200903 T1 20010515; DE 69704683 D1 20010607; DE 69704683 T2 20011031; DK 0791607 T3 20010716; ES 2156310 T3 20010616; IT 1282666 B1 19980331; IT MI960331 A0 19960222; IT MI960331 A1 19970822; JP 4145372 B2 20080903; JP H111488 A 19990106; US 5936051 A 19990810
DOCDB simple family (application)
EP 97102056 A 19970210; AT 97102056 T 19970210; DE 69704683 T 19970210; DK 97102056 T 19970210; ES 97102056 T 19970210; IT MI960331 A 19960222; JP 3956797 A 19970224; US 80287597 A 19970219